Home / 2,015.12-3,022.68-1,149.50

Finding the Fourth Proportional to 2,015.12, 3,022.68 and 1,149.50

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Solution

The fourth proportional to 2,015.12, 3,022.68 and 1,149.50 is: 1,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.12 : 3,022.68 = 1,149.50 : x
  2. Step 2: Convert to fraction form
    2,015.12/3,022.68 = 1,149.50/x
  3. Step 3: Cross multiply
    2,015.12x = 3,022.68 × 1,149.50
  4. Step 4: Simplify right side
    2,015.12x = 3,474,570.66
  5. Step 5: Solve for x
    x = 3,474,570.66/2,015.12
  6. Step 6: Final answer
    x = 1,724.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.